Essays on Rare Earth

There has been increasing awareness of the role of waste in the production of greenhouse gas emissions and its impacts on climate change. Diminishing natural resources has led to the recognition that what is discarded as waste has the potential to be reused as resources. Governmental legislation on prohibiting toxic materials and prevention and control of the volume of waste has helped in decreasing adverse environmental effects. There is a growing public awareness about waste prevention and its beneficial effects. The society has to replace the linear model of extract-produce-consume-dispose to closed Loop's approach of resource recovery and waste ...

Philosophy

Introduction Man has always gazed at the stars and attempted to answer the question about the existence of any life anywhere else in the Universe apart from Earth. While for the better part of the first two thousand years After Christ, there was a popular assumption that Man is unique in the Universe, the acceptance of the ‘Copernican Principle’ (Tyson, 2003) in the 1500s, when Nicholas Copernicus put the sun back in its proper place at the center of the solar system, propelled the notion that man may not be unique after all. Given the fact that the three ...

1.0 Executive Summary China should consider adhering to ethical requirements in decision making in the future by taking account of the impact made to the larger society and not just their interests

Adopt effective policies that meet the concerns of the global community and not just the interests of China in the exploitation of the rare earth metals 2.0 Introduction In the current global setting, ethical consideration is taken into account to ensure that projects meet their intended goals/objectives in the most efficient way. It, therefore, means that to achieve the desired goals of projects, organizations should not have ...

Article Summary

A few years ago China was the largest supplier of rare earths in the world with 95 per cent of the world production of rare earths coming from China . In 2010 China took a turn in its marketing strategy for rare earths. It restricted export of rare earth by imposing a quota of 40 per cent on exports of rare earths. Export to Japan was totally cut off due to some dispute between the two countries. The ensuing uncertainty about rare earth supply led to the sky-rocketing of the price of rare earths in the world market. The high ...

Abstract

Permanent magnet synchronous motors (PMSM) are a type of motors that have permanent magnets mounted on the rotors instead of the rotor windings. This particular design gives the motor a few advantages over ordinary induction synchronous motors. The magnets attached to the rotor do not require excitation, which reduces the power consumption in PMSM. This gives the motor high operational efficiency and reduces the motor active diameter. PMSM are therefore associated with applications that require high torque but have limited operation space. The permanent magnets suffer from flux leakage and are therefore aligned in a pattern that minimizes flux ...

The Lord of Death, in the Indian epic of Mahabharata, asked his son about the most astounding aspect of the present world. The boy responded, “It is that all around us people can be dying and we don’t believe it can happen to us” (Halifax 6). Such typical refusal to accept death’s inevitability is particularly common in the modern Western society. Generally, the mainstream philosophers shunt any interest in paranormal matters like spirit possession, extra-sensory perceptions, spirit mediumship, reincarnation, and out-of-body experiences into the dark corners of their profession (Hales 335). Eminent philosophers like Antony Flew and ...

1.1 Introduction Recent growth and developments of the U.S economy indicates that the manufacturing sector is still leading. The impressive gains indicate surprising developments in the industrial sector with doubling previous rates in output. However, the U.S manufacturing sector has seen high rate of shifting to a dangerous move of depending on imports to acquire raw materials and intermediate goods for their industries. This is especially from upcoming economies such as China that are well sourced with these materials. The raw materials mostly imported are for automotive industries and majorly include rare earth metals and minerals such as cobalt, ...